40780720

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6983}}^1$

素因数の和:7069

約数の個数: 40

約数和(自身を含む): 96127776

約数和(自身を除く): 55347056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 5840, 6983, 13966, 27932, 34915, 55864, 69830, 111728, 139660, 279320, 509759, 558640, 1019518, 2039036, 2548795, 4078072, 5097590, 8156144, 10195180, 20390360, 40780720]

約数ペア:

[(1, 40780720), (2, 20390360), (4, 10195180), (5, 8156144), (8, 5097590), (10, 4078072), (16, 2548795), (20, 2039036), (40, 1019518), (73, 558640), (80, 509759), (146, 279320), (292, 139660), (365, 111728), (584, 69830), (730, 55864), (1168, 34915), (1460, 27932), (2920, 13966), (5840, 6983)]